Espruino BLE on Puck.js - know when a central has read from a characteristic

Not sure how to configure security in Espruino to make this happen and if I would receive an NRF.on('security' event - that was the hope

I'm not sure either to be honest, and I don't think you'd get a security event for that. I'd imagine that probably once the device had been authorized that would be it though - otherwise writes to secure endpoints would end up running significantly slower than to insecure ones.